Individual Calculations January 2012
 Da Silva, Jefferson Rian Ferreir  Total change: -29.70  Rating chartPersonal card
 78 Campeonato Brasileiro Absoluto - Semifinal R2 Belem/PA BRA 2011-10-29
 2112 2037 1.00 5 -0.99 30 -29.70 
  Fernandes Filho, Bergson Fragoso 2175 BRA0.5010.19305.70 
  De Souza Monteiro, Marcos Paulo 2077 BRA0.5010.06301.80 
  Abreu, Nilton Silva 2066 BRA0.001-0.4630-13.80 
  Lopes, Janio Ribeiro 2025 BRA0.001-0.5230-15.60 
  Barata, Adriano Albiani 2217 BRA0.001-0.2630-7.80 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)


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